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Protective sheet for solar cell module, and solar cell module

A technology for solar cells and protective sheets, which is applied in circuits, applications, photovoltaic power generation, etc., and can solve the problems of poor adhesion between the extruded resin layer and the substrate film, poor adhesion between the extruded resin layer and the seal, and peeling of the protective sheet. , to achieve the effects of excellent adhesion, high durability, moisture resistance, and excellent water vapor barrier performance

Inactive Publication Date: 2013-01-09
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the back protection sheet described in Patent Document 1 has the following problems. The adhesiveness between the extruded resin layer and the base film and the adhesiveness between the extruded resin layer and the sealing material are poor. will peel off

Method used

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  • Protective sheet for solar cell module, and solar cell module
  • Protective sheet for solar cell module, and solar cell module
  • Protective sheet for solar cell module, and solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] "Example 1"

[0163] As a base film, corona treatment was performed on one side of a PET film (trade name Lumira-X10S, low oligomer content type, thickness 125 μm, manufactured by Toray Corporation) at a power of 2000W.

[0164] Using a co-extruder (cylinder temperature: 200°C, T-die temperature: 320°C) on the above-mentioned corona-treated surface of the PET film, low-density polyethylene (trade name: Petorosen 205, MFR8g / 10min, Tosoh Co., Ltd.) Co., Ltd.) and cycloolefin resin (trade name: ZEONOR1600, MFR6g / 10 minutes, manufactured by Nippon Zeon Co., Ltd.) are co-extruded so that each thickness becomes 25 μm, and cycloolefin is laminated on PET film via low-density polyethylene. Resin solar cell module protective sheet.

Embodiment 2

[0165] "Example 2"

[0166] Except that low-density polyethylene was used as an ethylene-glycidyl methacrylate copolymer (trade name: LOTADER AX8840, 92% by weight of ethylene, 8% by weight of glycidyl methacrylate, MFR5g / 10min, manufactured by Arkema Corporation) , in the same manner as in Example 1, a protective sheet for a solar cell module was produced.

Embodiment 3

[0167] "Example 3"

[0168] Except that the low-density polyethylene is ethylene-ethyl acrylate-maleic anhydride copolymer (trade name: BONDINE LX4110, 92% by weight of ethylene, 5% by weight of ethyl acrylate, 3% by weight of maleic anhydride, MFR5g / 10min, Arkema Company manufacture), except that it carried out similarly to Example 1, and produced the protective sheet for solar cell modules.

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Abstract

A protective sheet for a solar cell module, which comprises a cycloolefin resin layer laminated on one surface of a base material film through a polyolefin resin layer, wherein the polyolefin resin layer and the cycloolefin resin layer are formed by co-extrusion molding.

Description

technical field [0001] The present invention relates to a solar cell module protection sheet used as a surface protection sheet or a back surface protection sheet of a solar cell module, and a solar cell module including the solar cell module protection sheet. [0002] This application claims priority based on Japanese Patent Application No. 2010-072670 for which it applied in Japan on March 26, 2010, and uses the content here. Background technique [0003] Solar cell modules, which convert the sun's light energy into electrical energy, are attracting attention as a clean energy source that can generate electricity without emitting carbon dioxide to address environmental issues such as air pollution and global warming. [0004] In general, a solar battery module roughly consists of a solar battery cell that performs photoelectric conversion, a sealing material (filling layer) composed of an electrical insulator that seals the solar battery cell, a surface protection sheet (f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042B32B27/00B32B27/30B32B27/32
CPCH01L31/0487B32B2255/26B32B2307/206B32B27/306B32B2307/7246B32B2250/03H01L31/0481B32B27/36H01L31/048B32B27/08B32B2255/10B32B27/308B32B2457/12B32B27/325B32B2250/24B32B27/16Y02E10/50B32B27/32H01L31/049Y10T428/3154Y10T428/31913Y10T428/31928Y10T428/31909
Inventor 高梨誉也加藤挥一郎
Owner LINTEC CORP